Heat-saving and/or black-out window shield



y 1943- l. GOLDMERSTEIN 2,318,217

HEAT SAVING AND/OR BLACKOUT WINDOW SHIELD Filed Feb. 22, 1943 luvs-man Patented May 4, 1943 2,318,217 near-same AND/R BLACK-OUT wmnow SHIELD Isaac Goldmerstein, New York, N. per cent to George Jive New York, N. Y.

1., assignor of A. Bubissow,

Application February 22, 1943, Serial No. 476,694

Claims.

uncomfortable.

This invention will be found particularly advantageous in inclement weather especially when high winds prevail, as it will prevent cold air from the window frame.

Thus, an average house or room having an average amount of windows (generally 20 to in relation to outside wall space), loses about 70% of its heat and accordingly 70% of the fuel mpl yed.

The present invention provides meansto prevent the warm air in the house from coming into It consists The shield made in accordance with this inven- I tion plays the same role as a double window, but is more eiiicient, as the warm inside air never good insulating material.

It is known that about eleven times more heat is lost per square foot of a window than per square foot of an ordinary wall. I

The window provided with the shield such as described herein will lose a considerably lesser amount of heat calories than will a window without a shield.

The saving of otherwise lost heat efiected by the application of these shields, easily reaches to 45%. Hence, practically the same economy in fuel is effected.

Where storm windows are employed, fuel is saved only when strongv winds prevail and provided that the storm windows are well constructed eiiect a saving of about 50% of heat and fuel' of one part of the embodiment shown in Fig. 1.

and lit perfectly which is generally only while they are still new. However, since storm windows cannot prevent the inside air from coming into contact with the window panes, they cannot prevent the air from becoming increasingly colder and the chilling of the room goes on as usual.

Venetian blinds and shades also help very little to retain heat in the room, since they, too, are unable to stop the continuous contact of the air in the room against the cold window-panes.

The shield made in accordance with this invention may be aflixed to the windows at any time of the day desired. It will be found particularly advantageous by people who go to business, they can afllx the shields to leaving the house and thus be assured that they will return to warm rooms and at the same time otherwise 10st.

Since this invention is both a heat-saving shield and a blackout shield, it will be referred to in this application simply as a no distinction will be made herein between the two uses to which this shield may be put.

The above and further objects and novel features will be more fully apparent from the follow ing detailed description when-the same is read in connection with the accompanying drawing. It is to be expressly understood, however, that the drawing is for purposes of illustration only, and is not intended as a definition of the limits of the invention.

In the drawing wherein like reference characters refer to like parts throughout the several views,

Fig. 1 is a cross-section shield. and

side-view with parts broken out of one embodiment of the shield, with window-frame and walls.

Fig. 2 is a schematical front-view of the embodiment shown in Fig. l.

Fig. 3 is another cross-section side view with parts broken out of one embodiment of the shield, with window-frame and walls.

Fig. 4 is another schematical front-view of the embodiment shown on Fig. 1.

Fig. 5 is a schematical cross-sectional side-view shield.

Fig. 6 is another schematical front-view of the Figs. 7, 8 and 9 are schematical views in perspective with parts broken out of the fixation bars.

Fig. 10 is another cross-sectional side-view with parts broken out of one embodiment of the shield, with window-frame and walls.

' the shield.

' of an insulating Fig. 11 is a schematical side-view in perspective of another embodiment of the shield.

Figs. cross-section with parts broken out of a Fig. 14 is a cross sectional view of a modifican. s InFlgures 1', 2, 3, 4, 6, and 10. II is the wall of the room or the framework surro window, 2! is the frame surrounding the windowne. v In Figures 1 and 2, 23 and 24 are windowshields made in accordance with this invention,

material such as plain or corrugated cardboard, or any other material such as Celotex," asbestos, etc. or compressed wood shavwood' and cement cmnbinations, etc.

Excellent results will be obtained with corrugated cardboard such as used for packing pur: poses, and even cardboard as thin as it" or Y4 or /2" will prove efficient.

- The two shields 22 and 24 are placed as shown on the drawing, Figures 1 and 2, one overlapping the other, for example, 24 overlapping 23. They should be so fitted over the window that they contact the framework 2| surroimding the window in 2!, 2t and 21 as closely as possible. To maintain them in that position, a fixation bar 28 is placed in any suitable manner, as for instance, at an angleas shown on Fig. 2, ke t in place either by providing the ends or the bar with sharp prongs 29, II, or as illustrated on Fig. 8 by 31.

Instead of prongs on the ends or the bar, a hook and eye combination may be used, the hooks or the like 32, Fig. 6, aiilxed to the window frame or the framework surrounding the window, and eyes provided on the fixation bar, shown, by wayof example, as a on Fig. 7.

Instead of using the prongs or the above combination, one end of the bar may be provided with locking device 33 and the other end with the 12 and 13 are schematical side-views in part of rong. p One or both ends of the fixation bar may, if I desired, be provided with friction fixation means ll, Figs. 3, 4 and 9, such as rubber or other elastic materials, or springs; flexible materials such as thickjelt or corkwood, etc., may also be used for An; means used by upholsterers for hangin curtains, i. e. the curtain rods to the window frame, may be used for maintaining the fixation bar in position. A flange 35 shown on F18. 6 may be attach if desired, either to the window frame or to the framework it surroundthe window.

r desired, the shield may also be placed so that it fits to the framework surrounding the window and not the frame surrounding the window panes, as shown in Fig Another embodiment of this invention consists in window shields .with folds. Where two shields are used, such as shown on Figures 3 and 4, only one may have a fold, or if desired, both of them may have folds, such as shields 31 and 38 provided with folds 3! and 40. A stopper 4| or a plurality of stoppers, 4| and 42, are afiixed to shield 31, for instance, in such a position that it overlaps the other shield while simultaneously contacting the frame I, if mounted on the window, or the frame ll of the framework surrounding the window if mounted thereon. Its other edge It contacts the stopper ll and/or 42. i v

The two shields, either both or'only one having a' fold, and working as one self-adiustable unit,

made as described above, represent an important aspect of this invention. The shields may be of the same size or one larger than the other. They can be kept in a tight position on the frame of the window by merely pressing them to the frame with the hands and locked in this compressed state by means of the fixation bar 41, in the manner described herein.

' An essential feature of this embodiment provides the possibility of fitting the edge 45 of the shield under pressure towards the frame 13 (or N) while simultaneously pressing the edge 48 of the shield 31 towards the other edge is of the window frame (or 5| of the framework surrounding the window).

Additionally, the bottoms II of both shields, due to the weight of the shields, will fit perfectly to the bottom edge of the window frame 52, (or the edge of the framework 53 if mounted on the, same. as shown on Figs. 1 and 2, for example) This particular arrangement enables making two shields of cardboard, at least one of which has a fold, the shields being of such dimensions that there will be plenty of reserve for one to'overlap the other when placed on the window in the manner herein described. If they are too big, but still overlap one another, the desired results will be achieved just the same. If they are too small but just overlap one another, they will work perfectly also. a

Users of this type of shield consisting of two pieces of cardboard, will be able to adjust them to the window by merely cutting them to the proper size. Even if the shield is cut so that the upper edge of the shield, for instance, ,ll of Figs; 2 and 6, will not exactly fit the upper edge is of the frame, or if, for example, a gap such as shown by 51 on the drawing, even as wide as V2" or more, will be left, the shield will operate perfectly. as the cold air from the bottom being heavier than the warm air cannot rise to the top of the window. The same phenomena as keeping liquid gases in open bottles occurs.

After placing the two pieces of cardboard on the windowframe, or as shown on Fig. 2 on the framework surrounding the window, the user may mark off with a pencil where the stopper II or a plurality thereof should be'applied in order to provide the pressure of the edges 43, It as before described, towards the frame.

In other words, the total width of the both pieces of cardboard, for instance, 31 and a, when flattened out, should be slightly larger than the width between the edges of the frame (for instance, between 45 and Fig. 4), so that when the two shields are put in position they will exert pressure towards the edges through the intermediary of the stopper.

By this very simple means-two pieces of cardboard, at least one of which has a fold; a stopper (or more than one); and a fastening bara perfect window shield which can act to keep out the cold air and simultaneously serve as a 3 of the window by its edge Figure 6 shows by way of example shields 6| and 83 each having one fold 69, while shields 80 and 62 have no folds.

To provide light in the case that the cardboard is impervious to light, or the material of which the shield is made is opaque, cut-outs 10 or II, shown on Fig. 11, or 12 shown on Fig. 2, may be made in the shields. The out-out shown on Fig. 12 wherein the cardboard 12 has a cut-out 13, may, if desired, be covered on one or both sides with glass, Cellophane, or other transparent material 14 or |5. Insert I6 may be used to prevent covers 14-15 from touching.

Figure 13 shows a shield 11 made of corrugated cardboard provided with a cut-out for purposes of light. This cut-out may be made of transparent corrugated Cellophane or cellulose or other suitable plastics.

One of the aspects of this invention oifers a new type of corrugated Cellophane or corrugated cellulose material for any use, and in particular, for use in connection with this invention for the manufacture of the shield itself, or for the window (cut-out) in the shield to'provide light.

Obviously, instead of fitting the window 19 made of corrugated Cellophane or cellulose into the cut-out made in the shield, it may besimply pasted over the cut-out I2 directly on the shield.

If desired, that edge of the shield which contacts the window-frame, may additionally be provided with a thin flexible edge 80 as shown on Figure 5, made of paper, cloth, Cellophane, cellulose, rubber-band, etc., to increase the tightness between the edge of the shield and the frame.

This is of particular importance where the shield without a fold is used, such as shown on Figs. 1 and 2 for example, which shields may, if desired, be provided with a stopper I 8| to augment tightness between the shield edges and the frame. Stopper |8l may also be used if shields 23 and 24 of Figures 1 and 2 are not provided with edges 88 of Figure 5.

Stoppers 4|, 42, I 8|, may be rectangularshaped and made of any suitable material. In certain cases, they may be trapezoidal, as shown, for example, on Figure l, where edge I82 of stopper IN is not perpendicular to the shield.

Where a shield composed of two fiat shield parts 23 and 24, Figures 1 and 2, without folds, is used, a stopper of this shape will serve to tighten the edges of the shields towards the frames of the windows or the framework surrounding the window.

If desired, stopper 82, Figure 5, may be additionally provided on its lower part with a cut-out 83 to better engage the edge 84 of shield 85.

The shields may also be provided with more than one fold, as shown by way of example on Figure 10, where the shield-part 66 is provided with only one fold 8| and the shield-part TI is provided with two folds 82 and 83. Any combination of shields in relation to the number of folds may be used. For instance, a shield-part If no folds are provided on fold 35 may be so without a fold and another shield-part having one or more foldsmay be used together as one unit. Or, a shield-part having one fold and another having one or more folds may be used together as a single unit. The two shield-parts without any folds may also be used as one single unit.

Another aspect of a shield is shown on Figure 14 wherein the glass panes 22 of window-frame 86 are covered with shield-parts 89 and 88. The overlapped shield-part 89 may be quite flat, i. e. having no folds, or it may, if desired, have one or more folds such as shown on Figure 3 or 11.

Figure 14, then it may vide at least one of inserts 81 and 88 to control the air space between pane 22. and the shield.

The overlapping shield-part 88 may have a plurality of zig-zag folds 8|, 92, 83, 94, 85, etc. to form a kind of accordion-like device; the last placed that the strip of the shield-part from the fold 95 to the edge 86 of the frame, or of the shield-part 98, will be sufiiciently wide. Thus, when fastening means Q1 is attached, the accordion-like folds, being compressed, extend the width of the shield-part so that it fits the frame; a perfect contact between the edge of the shield-part and the frame 86 is thus provided.

Instead of stopper l8l, Figure 2 and Figure 3, or "-42, Figure 4, tension means such as metal springs or spring made of plastic or elastic means made of rubber, may be used; for instance, as shown on Figure 2, fixation means 88 may be amxed on the frame and fixation means 89 on the shield-part. The tension means 108 may be inserted between 98 and 98 and the shield pulled towards the frame.

If desired, fixation means |0l and I82 may also be aflixed on shield-parts 23 and 24, and tension means I83 inserted in between IOI and I02; or the shield-part 38 of Figure 4 may be provided with a cut-out I04, and tension means III! inserted in between fixation means I 05 mounted on shield'part 31 and fixation means I06 mounted on a shield-part 38.

Having now ascertained and particularly described the nature of this invention and the manner in which it is to be performed, I declare that what I claim is:

1. In combination with frame, a heat-saving shield comprising two overlapping shield-parts, the overlapping one and the overlapped one, at least one of said shieldparts being provided with at least one fold preferably parallel to the longitudinal axis of said shield, at least one stopper being provided on one of said shield-parts to contact the edge of the other of said shield-parts, at least one fastening bar with fastening means provided to attach the said shield-parts to said frame.

2. In combination with a window having a frame, a heat-saving shield comprising two overlapping shield-parts, the overlapping one and the overlapped one, at least one of said shieldparts being provided with at least one fold preferably parallel to'the longitudinal axis of said shield, at least one stopper being provided on one of said shield-parts to contact the edge of the other of said shield-parts, at least one fastening bar with fastening means provided to attach the said shield-parts to said frame, the width of said shield-parts in the overlapping position being larger than the width of the said frame.

3. In combination with a .window having a a window having a part 89 as shown on'- be advantageous to pro-' frame, a heat-saving shield comprising two overlapping shield-parts, the overlapping one and the,

overlapped one, each of said shield-parts being provided with a fold, said fold being substantially parallel to the longitudinal axis of said shield, at least one stopper being provided on one of said shield-parts to engage the edge of the other shield-part, a fastening bar and fixation means therefor being provided to attach the said shieldparts to said window.

4. A heat-saving and/or blackout window shield comprising two shield-parts, the overlapping part and overlapped part, at least one of said parts having at least one fold preferably parallel to the longitudinal axis of said shield, a stopper rigidly affixed to one of said shield-parts, a fastening bar and fixation means therefor to attach the said shield to said window.

5. A heat-saving and/or blackout window shield comprising two shield-parts, an overlapping part and an overlapped part, at least one of said parts having at least one fold preferably parallel to the longitudinal axis of said shield, a stopper rigidly affixed to one of said shield-parts, a fastening bar and fixation means therefor to attach the said shield to said window, said shield-parts being made of cardboard.

6. A heat-saving and/ or blackout window shield comprising two shield-parts, the overlapping one and the overlapped one, at least one of said parts having at least one fold preferably parallel to the longitudinal axis of said shield, a stopper rigidly afllxed to oneof said shield-parts, a fastening bar and fixation means therefor to attach the said shield to said window, said shield-parts being made of corrugated cardboard.

7. A heat-saving and/or blackout window shield comprising two shield-parts, the overlapping one and the over-lapped one, at least one of said parts having at least one fold preferably parallel to the longitudinal axis of said shield, a stopper rigidly amxed to one of said shield-parts, a fastening bar and fixation means to attach said shield to said window, said shield-parts being made of corrugated cardboard, said stopper being made of wood.

8. In combination with a window having a frame, a heat-saving shield comprising two overlapping shield-parts, the overlapping one and the overlapped one, at least one of said shield-parts being provided with at least one fold preferably parallel to the longitudinal axis of said shield, at least one stopper being provided on one of said shield-parts to contact the edge of the other of said shield-parts, at least one fastening bar with fastening means provided to attach said shieldparts to said frame, one of said shield-parts being provided with at least one cut-out preferably covered with transparent material.

9. A heat-saving and/ or blackout window shield comprising two shield-parts, an overlapping part and an overlapped part, at least one of said parts having at least one fold preferably parallel to the longitudinal axis of said shield, a stopper rigidly amxed to one of said shield-parts, a fastening bar and fixation means therefor to attachsaid shield to said window, said shield-parts being made of corrugated Cellophane.

10. A heat-saving and/or blackout window shield comprising two shield-parts,- an overlapping part and an overlapped part, at least one of said parts having at least one fold preferably parallel to the longitudinal axis of said shield, a stopper rigidly affixed to one of said shieldparts, a fastening bar and fixation means therefor to attach said shield to said window, the edges of said shield-parts contacting the said window being provided with flexible flanges.

ll.v A heat-saving and/or blackout window shield comprising two shield-parts, an overlapping part and an overlapped part, said overlapped part being flat and said overlapping part having at least one fold preferably parallel to the longitudinal axis of said shield, 21 stopper rigidly afllxed to one of said shield parts, a fastening bar and fixation means therefor being provided to attach said shield tosaid window.

12. A window-shield as set forth in claim 4, wherein the said fastening bar has prongs on both ends.

13. A window-shield as set forth in claim 4, wherein said fastening bar is provided on both ends with rubber tips.

14. A window-shield as set forth in claim 4 wherein the said fastening bar is provided with a hook and the said fixation means comprises a ring in which said hook is inserted.

15. A window-shield as set forth in claim 4 wherein an insert is provided between said shield and said window to provide an air space.

16. A shield as set forth in claim 4 wherein said stopper is attached to said shield-parts by means of prongs.

- 17. A shield as set forth in claim 4 wherein the said stopper is provided with an edge forming an angle of less than 90 with said shield-parts.

18. A heat-saving and/or blackout window shield comprising two shield-parts, one overlapping the other, at least one stopper rigidly afllxed to one of said shield-parts to contact the edge of the other of said shield-parts, a fastening bar and fixation means therefor to attach the said shield to said window.

19. A heat-saving and/or blackout window shield comprising two shield-parts, one overlapping the other, at least one stopper rigidly aflixed to one of said shield-parts to contact the edge of the other of said shield-parts, a fastening bar and fixation means therefor to attach the said shield to said window, at least one of the said shield-parts having a plurality of accordion-like folds preferably on the side contacting the window-frame.

20. A heat-saving and/or, blackout window shield comprising two shield-parts, one overlapping the other, at least one stopper rigidly affixed to one of said shield-parts to contact the edge of the other of said shield-parts, a fastening bar and fixation means therefor to attach said shield to said window, said stopper having an edge which forms an angle less than with the shield-part towhich it is affixed.

ISAAC GOLDMERSTEIN. 

